Rectilinear combing machine for working textile fibers, founded on the heilmann principle



Dec. 22,- 1953 c. SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED on THEHEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet l FIG.2

FIG.1-

Dec. 22, 1953 c. SCHLEIFER 2,663,053

' RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THEHEILMANN PRINCIPLE' Filed April 20,1950 5 Sheets-Sheet 2 .Fic.3

Dec. 22, 1953 0. SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THEHEILMANN PRINCIPLE Filed April 20, 1950 5Sheets-Sheet 3 Dec. 22, 1953 c.SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THEHEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet 4 FIG. 5

Dec. 22, 1953 c. SCHLEHFER 2,$63,@53

RECTILINEAR CQMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THEHEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet 5 FIG.5

Patented Dec. 22, 1953 1 UNITED STATES PATENT OFFICE RECTILINEAR COMBINGMACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLECarlo Schleifer, Milan, Italy Application April 2i), 1950, Serial'No.157,047 Claimspriority, application Italy-April 28, 1949 It is theobject of the present invention to provide a rectilinear combing machinewith nippets and a pen dul'armovement of the carriage carrying thenippers guided by a kinematic couplingestablished between said carriageand the framing of the-machine, characterized in that said couplingobliges the nippers to follow a path along a mixed line profile, whichduring the periodin which the closed nippers are presented tothe roundcomb,.coincides with an arc of a circle having its centre on the axis ofthe circular comb, whilst during the period in which the nippers openand remain open, it consists of a line the points of which are at adistancelarger than the 'radius of said are from said centre.

feature provides for an appreciable reduction in the amplitude of theangle corresponding to the stroke of the carriage carrying the nippers,as compared with known rectilinear combing machines. fl H Other featuresand advantages of the present invention are setforth in the followingdescription' with reference to the accompanying draw ings, wherein:

' 'Fig. 1 represents a diagram of one first form of embodiment of thecombing machine in the position with nippers closed;

Fig. 2 represents a detail of the combing machi'ne'of Fig. 1;

' Fig. 3 represents the same combing machine in*the position withnippers open;

Figures4 and 5 represent a second form of embodiment of the combingmachine according to the invention, respectively in the positions withnippers closed and with nippers open;

' Fig. 6 represents in plan a combing machine according to theinvention, with two combing heads.

In the Figs. 1, 2, 3, reference numeral I designates the carriagecarrying the nippers, which is articulated, about a pin having an end 2,to a control lever 3 swinging about a fixed pin 4. The carriage carryingthe nippers is terminated at its opposed end by a guide (slide) having amixed line profile 5 bearing on a roller 6 rotatable about a fixed pin1.

Above said guide, the carriage carries the fixed lower jaw 8 of thenippers.

A rocker, the arms of which are designated by I0 and II, is oscillatingabout a pin 9 mounted on the same carriage. The end of arm I0 carries aprojection I2 placed in front of a stop plane I3 carried by the carriageI. The upper end of the arm II is bent at right angles and constitutesone of the bearings of a helical pres- 1 3 Claims. (01. 19-116) surespring I5, the other end of which bears against a block I! rigid withthe carriage I. Two pins I 4 and I6 carried by the'bearings prevent thespring I5 from deviating laterally.

The mobile upper jaw l8 of the nippers is carried by a rocker I9,articulated about a pin '20 carried by the carriage I. At the rocker endI9 opposite the jaw I8 there is articulated about a pin 2I anarticulated lever 22, carrying at its other end a pin 23. v

' About the pin 26 carried by the arm III of the bracket lever there isarticulated a counterlever 25 oscillating in turn about the pin 23slidable within a rectangular guide 24 fixed onto the framing of themachine.

The numeral 21 indicates the circular comb rotating with the shaft 28 onthe-framing. The clockwise rotation of the control lever 3 imparts tothe carriage I a displacement toward the right, guided by the mixed-lineguide 5 sliding on the guide roller 6. The path of the end of the lowerjaw of the nippers 8 assumes the shape indicated by the dash and pointline 29 of Fig. 1, namely: in a first section, the path is constitutedby an arc of a circle having its centre in the axis of the shaft 28, andin a second section it is constituted by an appropriate curve, such asto take the end of the jaw 8 quickly away from the circular comb 21.

The opening of the nippers is controlled by the two-lever system of thearticulated lever 22 and the counter-lever 25, the common pinof whichbeing'compelled to displace along the guide 24 fixed tothe framing,during the displacement to the rightof the carriage I, will causerotation of the two arms 22 and 25 in the sense indicated at Fig. 3,vthus producing a rotation in a counterclockwise sense of the rocker I9,carrying the mobile jaw I8. The presence of the spring I5 imparts to thelever system 22 and 25 the necessary elasticity; said levers 22 and 25cause the nippers to close. The system is arranged in such a manner thatin the closed position of the nippers, the three pins 2|, 23 and 26 ofthe levers 22 and 25 come tobe aligned and the two planes of contact I2and I3 are slightly spaced from each other, thus compressing the springl5 and ensuring a right closing of the nippers; whilst if the planes I2and I3 are in contact (nippers open), the spring remains in the restposition.

In Figures 4 and 5, reference numeral 30 designates the carriagecarrying the nippers, which carriage is articulated about a pin with anend 3| on a control lever 32 oscillating on the pin 33 of the framing;the control lever 32 bears with the rolls 34 and 35 rotatable about thepins 35 and 3'! on a double control eccentric 38 rotat ing with its ownshaft 39. The carriage 39 carrying the nippers bears at its frontportion with the roll 49 rotatable about the pin 4|, upon a profiledguide 42, and carries an arm 44 fulcrumed on its own pin 43, with thelower jaw 45 of the nippers, and an arm 45 with the upper jaw 41 of thenippers. About a pin 48 fixed to the carriage 39 there is fulcrumed abell crank lever, the arms of which are designated 49 and 59; the end ofarm 49 carries a pin slidable in a double shaped guide 52 fixed to theframing. At the upper end of the arm 50 there is fulcrumed on the pin 53the link 54 united in turn by the pin 55 to the rear end of the arm 46.

The rear end 55 of the arm 44 constitutes one of the bearings of thepressure spring 51, the other bearing of which is formed by theprojection 58 provided in the carriage 39; the arm 44 is united to thecarriage 30 by the rod 59 and nut 69.

Onto the shaft 39 there is fitted the driving gear 6|, which by means ofthe intermediary 62 rotatable about the pin 63 controls the driven gear64 rigid with the shaft 55 of the circular comb 66. Reference numerals6'! and 58 designate the fluted drawing rollers and 69 designates theleather sleeve interposed between them.

The double eccentric 3B rotating in clockwise direction imparts by meansof the rocking lever 32 a reciprocating motion to the carriage 39, whichbears with the roll on the shaped guide 42, thus compelling the frontend of the lower jaw of the nippers, rigid with the arm 44, which isunited to the carriage by the spring 51, the rod 59 and nut 60, tofollow the path 10 indicated with dash and point lines; this path isconstituted in a first section by an arc of a circle having its centreon the axis of the shaft 65, and in a second section by an appropriatecurve such as to take the end of the jaw 45 quickly away of the circularcomb 66.

The opening of the nippers is obtained by means of the pin 5| fixed tothe arm 49 of the bracket lever, which during the movement of thecarriage, compelled to slide in the double guide 52, obliges the saidlever to rotate in a counter-clockwise direction, thus determining bymeans of the link 54 the consequent rotation about the fulcrum 43, ofthe arm 46 carrying the upper jaw 41 of the nippers.

The system of levers is arranged in such a manner that in the positionof nippers closed,

the pin 53 comes to be situated slightly beyond the line connecting therotation pins 48 and 55, and held in position by the stop notches H.

The presence of the spring 51 interposed in the rear portion between thecarriage 30 and the arm 44, imparts to the system the necessaryelasticity during closing. If the nippers open, the head of the rod 59comes to contact with the end 56 of the arm 44, thus eliminating thepressure of the spring from the arms of the nippers.

The constructional principles governing the combing machine according tothe present invention overcome in a simple and rational manner theproblem of assembling a plurality of combing heads in one singlemachine, for the purpose of improving efficiency as obtainable with asingle-head combing machine.

The machine represented at Fig. 6, provided with two heads actuated by asingle main control device attains saving in operation, saving of space,saving of cost of the machine, while good accessibility and simplicityof adjustment are also ensured.

In said Fig. 6, in which the reference numerals correspond to those inFigs. 4 and 5, 30 designates the leftand the right-hand nippers-carryingcarriages, ontowhich the lower jaws 45 are fixed. Reference numeral 32designates the left and right rocking control levers, oscillating on thepins 33. The rollers 40 of the carriages bear against the tracks 42. Theupper jaws 41 of the nippers, respectively of the left and rightcarriage, are carried by the arms 46. Members are the left and rightcircular combs rotating with the shaft and driven by the gear 54. Member39 is the control shaft for the eccentrics, which carries on its leftside the gear 6|, which by means of the intermediary 62 rotatable on pin63 drives the gear 64 and on the right side an eccentric which drivesthe lower fluted rollers 61. l r

Having now particularly described and ascertained the nature of thepresent invention and in what maner the same is to be performed, Ideclare that what I claim is:

1. In a mechanism for imparting rectilinear motion to the nippers in acombing machine having a frame with a comb rotatably mounted therein, acarriage lever mounting the nippers above said. rotatable comb andhaving a roller on its end adjacent the rotatable comb, a cam surface onthe frame of the machine over which said roller is adapted to move,acontrol lever pivoted on said frame and pivotally connected to theother end of said carriage lever, means on said frame for oscillatingthe control lever, a first double armed lever pivotally mounted on saidcarriage lever intermediate the ends of the latter and supporting at oneend one of the nipper jaws over said rotatable comb, a second doublearmed lever pivotally mounted on said carriage lever also intermediatethe ends of the latter and carrying the other nipper jaw in cooperativerelationship with the first nipper jaw, a compression spring mountedbetween the other end of the first double armed lever and the carriagelever and biasing the nipper jaws into engagement, a bell crank leverpivotally mounted on said carriage lever and having one arm pivotallyconnected to the other end of the second double armed lever, and meanscooperating with the other end of said bell crank lever whereby duringmotion of the carriage lever away from the axis of the rotatable combsaid bell crank lever will open the nipper jaws and during motion ofsaid carriage lever in the opposite direction said bell crank lever willforce the nipper jaws closed.

2. In a mechanism for imparting rectilinear motion to the nippers in acombing machine having a frame with a comb rotatably mounted therein, acarriage lever mounting the nippers above said rotatable comb and havinga roller on its end adjacent the rotatable comb, a cam surface on theframe of the machine over which said roller is adapted to move, acontrol lever pivoted on said frame and pivotally connected to the otherend of said carriage lever, means on said frame for oscillating thecontrol lever, a first double armed lever pivotally mounted on saidcarriage lever intermediate the ends of the latter and supporting at oneend one of the nipper jaws over said rotatable comb, a second doublearmed lever pivotally mounted on said carriage lever also intermediatethe ends of the latter and carrying the other nipper jaw in cooperativerelationship with the first nipper jaw, a compression spring mountedbetween the other end of the first double armed lever and the carriagelever and biasing the nipper jaws into engagement, a bell crank leverhaving two arms at approximately a right angle with one arm pivotallyconnected to the other end of the second double armed lever, a cam slotformed in said frame, and a roller on the other arm of said bell cranklever and received in said cam slot.

3. In a mechanism for imparting rectilinear motion to the nippers in acombing machine having a frame with a comb rotatably mounted therein, acarriage lever mounting the nippers above said rotatable comb and havinga roller on its end adjacent the rotatable comb, acam surface on theframe of the machine over which said roller is adapted to move, acontrol lever pivoted on said frame and pivotally connected to theotherend of said carriage lever, means on said frame for oscillating thecontrol lever, a first double armed lever pivotally mounted on saidcarriage lever intermediate the ends of the latter and supporting at oneend one of the nipper jaws over said rotatable comb, a second doublearmed lever pivotally mounted on said carriage lever also intermediatethe ends of the latter and carrying the other nipper jaw in cooperativerelationship with the first nipper jaw,

V 6 V a compression spring mounted between the other end of the firstdouble armed lever and the carriage lever and biasing the nipper jawsinto engagement, a bell crank lever pivotally mounted on said carriagelever having two arms at approximately a right angle, a link pivotallyconnecting one end of the bell crank lever to the other end of saidsecond double armed lever and adapted to be aligned with the said arm ofthe bell crank lever when the nipper jaws are closed, a cam slot formedin said frame, and a roller on the other end of said bell crank leverand received in said cam slot.

CARLO SCI-ILEIFER.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 712,222 Wenning et a1. Oct. 28, 1902 1,464,820 Heinrich Aug.14, 1923 1,516,101 Jolly Nov. 18, 1924 1,714,017 Gegauff May 21, 19292,384,603 Crockett Sept. 11, 1945 FOREIGN PATENTS Number Country Date257,232 Great Britain Sept. 29, 1927

